gistfile1.txt

token methodop {
    '.' <identifier>
    [ 
    | <?[(]> <args>
    | ':' \s <args=.arglist>
    ]?
}

token dotty {
    <methodop>
}

--

token methodop {
    <identifier>
    [ 
    | <?[(]> <args>
    | ':' \s <args=.arglist>
    ]?
}

token dotty {
    '.' <methodop>
}